This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A171235 #14 Jan 04 2019 06:44:28 %S A171235 31,32,73,79,80,81,83,84,109,111,112,118,139,140,174,175,176,181,183, %T A171235 184,186,190,205,273,277,281,301,313,317,319,320,322,433,454,482,485, %U A171235 486,489,490,493,497,502,505,511,512,513,618,622,643,644,699,700,703,704,706 %N A171235 Solutions to the equation M(n) = -4 (M = Mertens's function A002321). %H A171235 Seiichi Manyama, <a href="/A171235/b171235.txt">Table of n, a(n) for n = 1..10000</a> %Y A171235 Cf. A002321. %K A171235 nonn %O A171235 1,1 %A A171235 Neven Juric (neven.juric(AT)apis-it.hr), Sep 03 2010 %E A171235 More terms from _Seiichi Manyama_, Jan 04 2019